
Gliese 12 - System
Gliese 12, a cool M-dwarf of 0.26 solar masses, and Gliese 12 b, a 0.9-Earth-mass planet, with an orbital period of 12.8 days, on an eccentric orbit (e ≈ 0.24).
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Gliese 12, a cool M-dwarf of 0.26 solar masses, and Gliese 12 b, a 0.9-Earth-mass planet, with an orbital period of 12.8 days, on an eccentric orbit (e ≈ 0.24).

HAT-P-1, a Sun-like G-type star of 1.15 solar masses, and HAT-P-1 b, a 0.53-Jupiter-mass companion, with an orbital period of 4.5 days, at 0.056 AU from its star, and an equilibrium temperature near 1,322 K.

HAT-P-11 b, an eccentric warm Neptune with water vapor in its atmosphere. It is one of the smallest planets with a measured transmission spectrum.

HAT-P-12, an orange K-type dwarf of 0.73 solar masses, and HAT-P-12 b, a 0.21-Jupiter-mass companion, with an orbital period of 3.2 days, at 0.038 AU from its star, and an equilibrium temperature near 963 K.

HAT-P-13, a Sun-like G-type star of 1.32 solar masses, and HAT-P-13 b, a 0.85-Jupiter-mass companion, with an orbital period of 2.9 days.

HAT-P-14, a Sun-like F-type star of 2.65 solar masses, and HAT-P-14 b, a 3.44-Jupiter-mass companion, with an orbital period of 4.6 days, on an eccentric orbit (e ≈ 0.11).

HAT-P-15, a Sun-like G-type star of 1.00 solar masses, and HAT-P-15 b, a 1.94-Jupiter-mass companion, with an orbital period of 10.9 days, on an eccentric orbit (e ≈ 0.19).

HAT-P-16, a Sun-like F-type star of 1.22 solar masses, and HAT-P-16 b, a planet with 14.7 Earth radii, and an equilibrium temperature near 1,566 K.

HAT-P-17, a Sun-like G-type star of 0.92 solar masses, and HAT-P-17 c, a 3.40-Jupiter-mass companion, with an orbital period of 15.3 years, at 5.600 AU from its star, on an eccentric orbit (e ≈ 0.39).

HAT-P-18, an orange K-type dwarf of 0.77 solar masses, and HAT-P-18 b, a 0.20-Jupiter-mass companion, with an orbital period of 5.5 days, at 0.056 AU from its star, and an equilibrium temperature near 852 K.

HAT-P-19, an orange K-type dwarf of 0.81 solar masses, and HAT-P-19 b, a 0.28-Jupiter-mass companion, with an orbital period of 4.0 days, at 0.046 AU from its star, and an equilibrium temperature near 981 K.

HAT-P-2 b, a massive eccentric hot Jupiter. Eight Jupiter masses on a stretched orbit make the insolation swing sharply each perihelion. The planet is about eight times Jupiter's mass.

HAT-P-20, an orange K-type dwarf of 0.76 solar masses, and HAT-P-20 b, a 7.25-Jupiter-mass companion, with an orbital period of 2.9 days, at 0.036 AU from its star, and an equilibrium temperature near 970 K.

HAT-P-21, a Sun-like G-type star of 1.24 solar masses, and HAT-P-21 b, a 4.87-Jupiter-mass companion, with an orbital period of 4.1 days, on an eccentric orbit (e ≈ 0.23).

HAT-P-22, a Sun-like G-type star of 1.13 solar masses, and HAT-P-22 b, a 2.47-Jupiter-mass companion, with an orbital period of 3.2 days.

HAT-P-23, a Sun-like G-type star of 1.13 solar masses, and HAT-P-23 b, a 2.09-Jupiter-mass companion, with an orbital period of 1.2 days, at 0.023 AU from its star, and an equilibrium temperature near 2,056 K.

HAT-P-24, a Sun-like F-type star of 1.37 solar masses, and HAT-P-24 b, a 0.75-Jupiter-mass companion, with an orbital period of 3.4 days, on an eccentric orbit (e ≈ 0.07).

HAT-P-25, a Sun-like G-type star of 1.01 solar masses, and HAT-P-25 b, a 0.57-Jupiter-mass companion, with an orbital period of 3.7 days, at 0.047 AU from its star, and an equilibrium temperature near 1,182 K.